300 MW抽凝机组切缸改造运行调试试验  

Start Debugging Test Study on Flexible Heating Transformation of 300 MW Extraction Condensing Turbine Unit

作　　者：顾伟飞 GU Wei-fei(Zhejiang Zheneng Technology Institute Company Limited, Hangzhou 310052, China;Zhejiang Province Key Laboratory of High Efficiency Energy Saving and Pollutant Control Technology for Thermal Power Generation, Hangzhou 310052, China)

机构地区：[1]浙江浙能技术研究院有限公司,浙江杭州310052 [2]浙江省火力发电高效节能与污染物控制技术研究重点实验室,浙江杭州310052

出　　处：《节能技术》2022年第2期165-168,189,共5页Energy Conservation Technology

基　　金：浙江省能源集团有限公司科技项目(ZNKJ-2019-006)。

摘　　要：为满足区域提升供热能力和灵活性的要求,许多供热机组采用了低压缸切除技术。受供热方式、供热量的差异性使得低压缸切除改造并不相同,造成机组改造后调试流程及关键点也不相同。本文针对某大流量工业抽凝机组低压缸切除过程调试试验方法进行研究,分析低压缸切除过程对主机参数、供热系统、凝结水等系统的影响,优化了调试流程。通过实际试验评估了切缸后机组安全运行和设计工况供热能力,对切缸调试存在的问题进行了后续改进,为其它实施低压缸切除改造的机组提供一定的参考价值。In order to meet the requirements of district heating capacity and flexibility,many extraction condensing turbine units could improve their heating capacity while facing the ever-increasing heating demand.However,the difference in heat supply and heating parameters makes the low-pressure cylinder cut-off method not completely the same,resulting in different start debugging test procedures.This paper studies the debugging test of the low-pressure cylinder removal process of a large-flow industrial condensate extraction unit,analyzes the influence of the low-pressure cylinder cut-off process on the steam turbine system,heating system,condensate and other systems,and then optimizes the debugging process.Through the actual test,the safe operation of the unit and the heat supply capacity under the design condition are evaluated after the cut-off process.Subsequent improvements are made to the problems existing in the debugging test,which provides a reference value for other units that implement the low pressure cylinder removal and transformation.

关 键 词：抽凝机组 低压缸切除 调试试验 凝结水系统 除氧 

分 类 号：TM621[电气工程—电力系统及自动化]